JERUSALEM – Israeli F-16 jets pounded two Hezbollah bases in Lebanon yesterday as retaliation for a guerrilla attack that threatened to erupt into a border war.

At least three missiles were fired at training bases and munitions depots up to 10 miles inside Lebanon, Israeli officials said. There were no reports of casualties.

The cross-border airstrikes were the first by Israel in six months and came in retaliation for a Hezbollah attack on an Israeli bulldozer Monday that killed one soldier and seriously wounded another.

Israeli officials said tension along the border remains very high and both sides wondered whether there will be another round of attacks.

“This escalation will not change the steadfastness of the resistance in defending its people and country,” Hezbollah spokesman Sheikh Hassan Izzeddine said after the strikes.

Officials in Jerusalem said the bulldozer was trying to clear one of five explosive traps planted by Hezbollah recently along the border. They said the bulldozer was about 30 feet inside Lebanon when it was attacked.